Home / 97,019,722.80-145,529,584.20-66,408,721.20

Finding the Fourth Proportional to 97,019,722.80, 145,529,584.20 and 66,408,721.20

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Solution

The fourth proportional to 97,019,722.80, 145,529,584.20 and 66,408,721.20 is: 99,613,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,019,722.80 : 145,529,584.20 = 66,408,721.20 : x
  2. Step 2: Convert to fraction form
    97,019,722.80/145,529,584.20 = 66,408,721.20/x
  3. Step 3: Cross multiply
    97,019,722.80x = 145,529,584.20 × 66,408,721.20
  4. Step 4: Simplify right side
    97,019,722.80x = 9,664,433,583,489,724
  5. Step 5: Solve for x
    x = 9,664,433,583,489,724/97,019,722.80
  6. Step 6: Final answer
    x = 99,613,081.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.